<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="vue.js"></script>
</head>
<body>
    <div id="app">
        <input v-model="message">
        <p>{{message}}</p>
        <button v-on:click="submit">提交</button>
        <ul>
            <li v-for="num in List">{{num}}</li>
        </ul>
    </div>


    <script>
        var app = new Vue({
            el: '#app',
            data: {
                message:'',
                List: []
            },
            methods: {
                submit() {
                    this.List.push(this.message)
                    this.message = ''
                }
            }
        })
    </script>
    
</body>
</html>